A sexual act whereby the girl is lying on her back and the male positions himself above her as if you teabag her on the forehead. But instead he places his balls over her eyes. One ball per eyeball of course. Sometimes called ball-o-vision, the girl never sees it coming.
Guy1: I totally was ballblinding my girl last night!
Guy2: Awesome, talk about eyeBALLS!
Guy1: Haha yeah, she really had her eye on the ball.
Guy2: Highfive! I can't believe you had the balls to do that.
Guy1: Yeah, me neither I kinda went balls out.